Leak Check

WARNING: This page is about a different car, the 2005 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.

To check for leaks, apply pressure to the cooling system with radiator cap tester (commercial service tool) and radiator cap tester adapter (SST).
1. Testing pressure : 157 kPa (1.6 kg/cm ² , 23 psi)
WARNING: Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from thermostat housing.

CAUTION: Higher testing pressure than specified may cause radiator damage.

NOTE: In a case engine coolant decreases, replenish radiator with engine coolant.

Fig 1: Checking For Leaks
Courtesy of NISSAN MOTOR CO., U.S.A.
If anything is found, repair or replace damaged parts.